From bf260de243e55d02ae6be52678ccadc6ea77439b Mon Sep 17 00:00:00 2001
From: Bruno BELANYI <bruno@belanyi.fr>
Date: Mon, 19 Jan 2026 16:01:37 +0000
Subject: [PATCH] overlays: add 'nvim-treesitter-legacy-shim'

There has been a major breaking change upstream, as they have merged
updated the plug-in to its (majorly incompatible) main branch rewrite.

To make the upgrade process easier, this overlay ensures my
configuration will keep evaluating with the legacy plug-in variant.
---
 .../nvim-treesitter-legacy-shim/default.nix    | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 overlays/nvim-treesitter-legacy-shim/default.nix

diff --git a/overlays/nvim-treesitter-legacy-shim/default.nix b/overlays/nvim-treesitter-legacy-shim/default.nix
new file mode 100644
index 0000000..d629f71
--- /dev/null
+++ b/overlays/nvim-treesitter-legacy-shim/default.nix
@@ -0,0 +1,18 @@
+final: prev:
+let
+  inherit (final) lib;
+  overrides = final: prev:
+    let
+      hasLegacyPackage = prev ? nvim-treesitter-legacy;
+    in
+    {
+      nvim-treesitter-textobjects-legacy = prev.nvim-treesitter-textobjects.overrideAttrs {
+        dependencies = [ final.nvim-treesitter-legacy ];
+      };
+    } // (lib.optionalAttrs (!hasLegacyPackage) {
+      nvim-treesitter-legacy = final.nvim-treesitter;
+    });
+in
+{
+  vimPlugins = prev.vimPlugins.extend (overrides);
+}